Zincs

Discussion in 'Newbie Lounge - NEW' started by billnpat, Dec 4, 2009.

  1. billnpat

    billnpat New Member SILVER Sponsor

    Nov 15, 2009
    Lindenhurst N.Y.
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Onan 21.5Kw di
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Skyhook® Stati
    Im confused again...:huh: Am I I/O ??

    My engines are MERC CRUISERS V-8 300 HP [E] 350 CID
    MODEL....350 HORIZON MPI..V-DRIVE...I found this in search threads about zincs...and whether they should be a concern to my 310....:

    For all: Just got an answer from my marina (mechanic). Mercruiser does not put the pencil zinc anodes in thier engines. Boats with inboard/outboard configuration have the Mercathode (Cathodic Protection System) installed and that is connected to the "outdrive" of the I/O. True inboards, with V-Drives and shafts, do not have the internal engine zincs. Like said, the engine/shaft, are protected by the hull/transom zinc, and you should put "shaft" zincs on if you don't have them. Sea Ray "does not" install shaft zincs on any of their boats, but many mechanics have told me, to put them on for your own protection. They cost like $12 each, so put one on each shaft about 10" out from where the shaft extrudes outside of the hull.

    Question....Am i inboard/outboard ??

    Question Do i have (Cathodic Protection System)?????

    thanks....:huh:
     
  2. rcknecht

    rcknecht Active Member

    Mar 23, 2009
    toms river,nj
    340 Sundancer 2001
    T 454 MPI
    You have Inboards with "V" drives... I believe the Mercathode system is only with Stern Drives, but I am not absolutely sure...
     
  3. mwph

    mwph Active Member

    Jul 8, 2008
    Lake Guntersville, Tennessee River, Alabama
    1998 250 DA
    7.4L, B3
    I think this will answer your second question of "Do I have protection?" The system is for sterndrive units wich you do not have. Hopefully some V Drive guys will chime in on proper placement of any zincs you may need. Remember too that water type (salt/fresh) determines the type of "zincs" you'll need. The site I linked to below is a great resource for me in learning about galvanic corrosion. Hope this helps.....

    The Mercathode is a device that helps protect against Galvanic Corrosion.

    Most newer Mercruiser Engine Packages (with the exception of the 4 cylinder models) come standard with an installed Mercathode Antigalvanic Corrosion System.

    The Mercathode system has two parts; the Controller and the Anode.

    The Controller is located in the boat and it's usually mounted on the engine. The Controller sends a signal to the Anode which develops a protective field around the sterndrive unit to protect it against gal;vanic corrosion. It should be wired directly to the batteries positive terminal with the included in-line fuse. The Mercathode must stay powered up even if the battery switch is turned off.

    There are four color coded wires attching to the Mercathode Controller. One is RED for positive power. Another wire is BLACK for a negative ground supply. One wire is ORANGE and yet another is BROWN. These ORANGE and BROWN wires run down to the Anode device on the bottom of the gimbal housing. The Anode is mounted outside the boat on the very bottom of the gimbal housing assembly. It is a black plastic device which is held in place with two bolts. The Anode is what produces the invisable protective field around the drive unit. The Anode must be kept clean and should never be painted.

    The Mercathode will drain your boats batteries. The harder it has to work the faster the drain. If you are keeping your boat in the water you NEED to keep a battery charger on the battery or the battery will go dead and you could sink the boat. Make sure you use a marine rated fully regulated and fully rectified battery charger.

    If you keep your boat in the water and you dont have a Mercathode, GET ONE. They are not too difficult to install and the whole Mercathode Kit is only about $119.00

    Text from... http://www.outdriveshop.com/mercathode.html
     
  4. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    Bill, a "V" drive is a little misleading. If I may, I think the word "drive" is what is confusing you. The "V" simply relates to the shape of your prop shaft, when looked at from the side. If you notice, your shaft comes out of the engine going forward, then makes a "V" bend and exits the hull. A "Straight" inboard would have the engine closer to mid-ship and the prop shaft will exit the engine going aft and continue, straight, out of the hull.

    For most things, you can consider the two systems basically the same.
     
  5. billnpat

    billnpat New Member SILVER Sponsor

    Nov 15, 2009
    Lindenhurst N.Y.
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Onan 21.5Kw di
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Skyhook® Stati
    Well i'm not a newer engine owner so i guess im not protected ....
    They told me today at M.M. that any Zincs needed for my boat will be installed upon being launch in the spring..
     
  6. billnpat

    billnpat New Member SILVER Sponsor

    Nov 15, 2009
    Lindenhurst N.Y.
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Onan 21.5Kw di
    Twin-Zeus-Cummins QSC 600 (T-574 hp - 420 kW) Zeus Propulsion includes Helm joystick, Skyhook® Stati
    YES! Thanks for clearing that up for me...:thumbsup:
     

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